CN110347623A - A kind of portable data acquisition card structure - Google Patents
A kind of portable data acquisition card structure Download PDFInfo
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- CN110347623A CN110347623A CN201910621404.5A CN201910621404A CN110347623A CN 110347623 A CN110347623 A CN 110347623A CN 201910621404 A CN201910621404 A CN 201910621404A CN 110347623 A CN110347623 A CN 110347623A
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- 238000004891 communication Methods 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000003750 conditioning effect Effects 0.000 claims description 6
- 230000001960 triggered effect Effects 0.000 claims description 3
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- 230000002452 interceptive effect Effects 0.000 claims 1
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- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 6
- 230000008054 signal transmission Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000013480 data collection Methods 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
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Abstract
The invention discloses a kind of portable data acquisition card structures, including two-way analog channel, trigger module, clock module, power module, data acquisition module, abstraction module, onboard storage module, processing module and communication module；The output end of analog channel described in two-way is connected with the input terminal of the input terminal of the abstraction module and trigger module respectively, the output end of the trigger module is connected with the input terminal of the data acquisition module respectively with the input terminal of the clock module, and the output end of the data acquisition module is connected with the input terminal of the input terminal of the abstraction module and the onboard storage module respectively.The utility model has the advantages that the present invention passes through integrated two-way analog channel and trigger module and data acquisition module and abstraction module, realize data information acquisition, not only the storage transmission with high-speed data and the high triggering frequency measurement logic digital circuits of timeliness, additionally there is excellent signal impedance and signal interference ability, have a wide range of application.
Description
Technical field
The present invention relates to data collecting card technical fields, it particularly relates to a kind of portable data acquisition card structure.
Background technique
Data acquire (DAQ), refer to and adopt automatically from the analog- and digital- unit under test such as sensor and other Devices to test
Collect non electrical quantity or electric quantity signal, be sent in host computer and analyzed, handles.Data collection system be combine based on computer or
The measurement software and hardware product of other dedicated testing platforms of person realizes flexible, the customized measuring system of user.Data acquisition
Card, the i.e. computer extender card of realization data acquisition (DAQ) function, can pass through USB, PXI, PCI, PCI Express, firewire
(IEEE1394), the buses such as PCMCIA, ISA, Compact Flash, 485,232, Ethernet, various wireless networks access
People's computer.
Data collection system is the important component of Signal and Information Processing system, as information technology and high speed interconnect
The rapid development of technology, the signal processing tasks that people face are more and more heavier, and the speed and precision of Digital Signal Processing is also got over
Come it is higher, to high-speed data acquisition card research importance it is increasingly prominent.And the problems such as solving high-resolution, high-precision, it is right
Store the read or write speed of equipment, high-speed ADC technical requirement will necessarily improve.
Therefore, a kind of portable data acquisition card structure is needed.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Summary of the invention
For the problems in the relevant technologies, the purpose of the present invention is to propose to a kind of portable data acquisition card structures, pass through
Integrated two-way analog channel and trigger module and data acquisition module and abstraction module, realize data information acquisition, not only have
There are storage transmission and the high triggering frequency measurement logic digital circuits of timeliness of high-speed data, additionally there is excellent signal impedance
With signal interference ability, have a wide range of application, to overcome above-mentioned technical problem present in existing the relevant technologies.
The technical scheme of the present invention is realized as follows:
A kind of portable data acquisition card structure, including two-way analog channel, trigger module, clock module, power module,
Data acquisition module, abstraction module, onboard storage module, processing module and communication module；
The output end of analog channel described in the two-way input terminal with the input terminal of the abstraction module and trigger module respectively
It is connected, the input terminal input with the data acquisition module respectively of the output end of the trigger module and the clock module
End is connected, the output end of the data acquisition module respectively with the input terminal of the abstraction module and the onboard storage module
Input terminal be connected, the output end of the output end of the abstraction module and the onboard storage module respectively with the processing mould
The input terminal of block is connected, and the output end of the processing module is connected with the input terminal of the communication module；
The trigger module first passes through analog channel and outside described in two-way in advance and is triggered, and passes through the data acquisition mould
Block obtains analog signal, by the abstraction module analog signal is carried out conversion and by the analog signal transmission of conversion extremely
The processing module, the processing module carry out to analog signal processing and carry out information exchange by communication module and pass through
Onboard storage module carries out information storage.
Further, further include interface module, the interface module include CH0 interface, CH1 interface, TRIG interface,
CLKIn interface, CLKOut interface, AUX I/O interface, wherein, the CH0 interface and the CH1 interface are respectively described in two-way
The input interface of analog channel (1), the TRIG interface are the external trigger interface of the trigger module, the CLKIn interface
It is respectively the external input clock interface and output reference clock interface of the clock module, the AUX I/ with CLKOut interface
O Interface is configuration information coffret.
Further, analog channel described in two-way is previously-completed the modulation and processing of analog signal, modulation and processing packet
Include gain circuitry, attenuator circuit, zeroing circuit, external dc biasing circuit, filter circuit and adc circuit, the gain circuitry
Conditioning is carried out to unified full range, institute to the full scale measurement range of analog signal input in advance with the attenuator circuit
It states zeroing circuit and the external dc biasing circuit eliminate the DC component of analog signal, the adc circuit carries out
Single-ended signal is converted into differential signal transmission to the abstraction module by differential driving.
Further, the filter circuit includes frequency overlapped-resistable filter and noise filter；
The frequency overlapped-resistable filter, which is set to before the gain circuitry, is higher than nyquist frequency letter for filtering out in signal
Number；
The noise filter is used to filter out before the adc circuit high-frequency noise of signal after conditioning.
Further, the processing module is FPGA processor.
Beneficial effects of the present invention: the present invention passes through integrated two-way analog channel and trigger module and data acquisition mould
Block and abstraction module realize data information acquisition, not only storage transmission and the high triggering frequency measurement of timeliness with high-speed data
Logic digital circuits additionally have excellent signal impedance and signal interference ability, have a wide range of application.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the functional block diagram of portable data acquisition card structure according to an embodiment of the present invention；
Fig. 2 is the analog channel functional block diagram of portable data acquisition card structure according to an embodiment of the present invention.
In figure:
1, analog channel；2, trigger module；3, clock module；4, power module；5, data acquisition module；6, mould is extracted
Block；7, onboard storage module；8, processing module；9, communication module.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
According to an embodiment of the invention, providing a kind of portable data acquisition card structure.
According to an embodiment of the invention, providing a kind of portable data acquisition card structure.
Embodiment one
As shown in Figs. 1-2, the embodiment of the present invention one are as follows:
A kind of portable data acquisition card structure, including two-way analog channel 1, trigger module 2, clock module 3, power supply mould
Block 4, data acquisition module 5, abstraction module 6, onboard storage module 7, processing module 8 and communication module 9；
The input with the input terminal and trigger module 2 of the abstraction module 6 respectively of the output end of analog channel 1 described in two-way
End is connected, the input terminal of the output end of the trigger module 2 and the clock module 3 respectively with the data acquisition module 5
Input terminal be connected, the output end of the data acquisition module 5 respectively with the input terminal of the abstraction module 6 and described onboard
The input terminal of memory module 7 is connected, the output end difference of the output end of the abstraction module 6 and the onboard storage module 7
It is connected with the input terminal of the processing module 8, the input terminal phase of the output end of the processing module 8 and the communication module 9
Connection；
The trigger module 2 first passes through analog channel 1 and outside described in two-way in advance and is triggered, and passes through the data acquisition
Module 5 obtains analog signal, carries out carrying out analog signal conversion by the abstraction module 6 and passes the analog signal of conversion
The processing module 8 is transported to, the processing module 8 carries out carrying out information exchange to analog signal processing and by communication module 9
And information storage is carried out by onboard storage module 7.
With the aid of the technical scheme, the present invention is obtained by integrated two-way analog channel 1 and trigger module 2 and data
Modulus block 5 and abstraction module 6 realize data information acquisition, not only storage transmission and the high touching of timeliness with high-speed data
Frequency measurement logic digital circuits are sent out, additionally there is excellent signal impedance and signal interference ability, have a wide range of application.
Embodiment two
As shown in Figs. 1-2, the embodiment of the present invention two are as follows:
A kind of portable data acquisition card structure, on the basis of example 1, the interface module include CH0 interface,
CH1 interface, TRIG interface, CLKIn interface, CLKOut interface, AUX I/O interface, wherein, the CH0 interface and the CH1
Interface is respectively the input interface of analog channel 1 described in two-way, and the TRIG interface is the external trigger of the trigger module 2
Interface, the CLKIn interface and CLKOut interface are respectively the external input clock interface and output ginseng of the clock module 3
Clock interface is examined, the AUX I/O interface is configuration information coffret.
Embodiment three
As shown in Figs. 1-2, the embodiment of the present invention three are as follows:
A kind of portable data acquisition card structure, on the basis of example 2, analog channel 1 described in two-way are complete in advance
At the modulation and processing of analog signal, modulation and processing are inclined including gain circuitry, attenuator circuit, zeroing circuit, external dc
Circuits, filter circuit and adc circuit, the gain circuitry and the attenuator circuit are in advance to the full scale of analog signal input
Measurement range carries out conditioning to unified full range, and the zeroing circuit and the external dc biasing circuit are eliminated
The DC component of analog signal, the adc circuit carry out differential driving and single-ended signal are converted into differential signal transmission to institute
State abstraction module 6.The filter circuit includes frequency overlapped-resistable filter and noise filter；The frequency overlapped-resistable filter is set to institute
It is used to filter out in signal higher than nyquist frequency signal before stating gain circuitry；The noise filter is set to the adc circuit
It is preceding for filter out conditioning after signal high-frequency noise.The processing module 8 is FPGA processor.
In conclusion by means of above-mentioned technical proposal of the invention, it can be achieved that following effect:
The present invention by integrated two-way analog channel 1 and trigger module 2 and data acquisition module 5 and abstraction module 6,
Realize data information acquisition, not only the storage transmission with high-speed data and the high triggering frequency measurement logic digital circuits of timeliness,
Additionally there is excellent signal impedance and signal interference ability, have a wide range of application.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of portable data acquisition card structure, which is characterized in that including two-way analog channel (1), trigger module (2), when
Clock module (3), power module (4), data acquisition module (5), abstraction module (6), onboard storage module (7), processing module (8)
With communication module (9)；
The output end of analog channel described in two-way (1) is defeated with the input terminal of the abstraction module (6) and trigger module (2) respectively
Enter end to be connected, the input terminal of the output end of the trigger module (2) and the clock module (3) respectively with the data acquisition
The input terminal of module (5) is connected, the input with the abstraction module (6) respectively of the output end of the data acquisition module (5)
End is connected with the input terminal of the onboard storage module (7), the output end and the onboard storage mould of the abstraction module (6)
The output end of block (7) is connected with the input terminal of the processing module (8) respectively, the output end of the processing module (8) and institute
The input terminal for stating communication module (9) is connected；
The trigger module (2) first passes through analog channel described in two-way (1) in advance and outside is triggered, and passes through the data acquisition
Module (5) obtains analog signal, carries out carrying out analog signal conversion by the abstraction module (6) and believes the simulation of conversion
Number be transmitted to the processing module (8), the processing module (8) carry out to analog signal processing and by communication module (9) into
Row information is interactive and carries out information storage by onboard storage module (7).
2. a kind of portable data acquisition card structure according to claim 1, which is characterized in that it further include interface module,
The interface module include CH0 interface, CH1 interface, TRIG interface, CLKIn interface, CLKOut interface, AUX I/O interface, its
In, the CH0 interface and the CH1 interface are respectively the input interface of analog channel described in two-way (1), and the TRIG interface is
The external trigger interface of the trigger module (2), the CLKIn interface and CLKOut interface are respectively the clock module (3)
External input clock interface and output reference clock interface, the AUX I/O interface be configuration information coffret.
3. a kind of portable data acquisition card structure according to claim 1, which is characterized in that analog channel described in two-way
(1) modulation and processing of analog signal are previously-completed, modulation and processing include gain circuitry, attenuator circuit, zeroing circuit, outer
Add DC bias circuit, filter circuit and adc circuit, the gain circuitry and the attenuator circuit in advance input analog signal
Full scale measurement range carry out conditioning to unified full range, the zeroing circuit and the external dc biasing circuit
Eliminate the DC component of analog signal, the adc circuit carries out differential driving and single-ended signal is converted into differential signal
It is transmitted to the abstraction module (6).
4. a kind of portable data acquisition card structure according to claim 3, which is characterized in that the filter circuit includes
Frequency overlapped-resistable filter and noise filter；
The frequency overlapped-resistable filter, which is set to before the gain circuitry, is higher than nyquist frequency signal for filtering out in signal；
The noise filter is used to filter out before the adc circuit high-frequency noise of signal after conditioning.
5. a kind of portable data acquisition card structure according to claim 1, which is characterized in that the processing module (8)
For FPGA processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910621404.5A CN110347623A (en) | 2019-07-10 | 2019-07-10 | A kind of portable data acquisition card structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910621404.5A CN110347623A (en) | 2019-07-10 | 2019-07-10 | A kind of portable data acquisition card structure |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103019117A (en) * | 2012-12-06 | 2013-04-03 | 北京航天测控技术有限公司 | Digitalizer based on PXI e interface |
| CN104361143A (en) * | 2014-11-28 | 2015-02-18 | 成都龙腾中远信息技术有限公司 | Portable data acquisition card and method thereof |
| CN104408213A (en) * | 2014-11-28 | 2015-03-11 | 成都龙腾中远信息技术有限公司 | Portable data acquisition card |
| CN104615042A (en) * | 2014-12-26 | 2015-05-13 | 北京航天测控技术有限公司 | PXIe bus based miniaturized multifunctional signal source device |
-
2019
- 2019-07-10 CN CN201910621404.5A patent/CN110347623A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103019117A (en) * | 2012-12-06 | 2013-04-03 | 北京航天测控技术有限公司 | Digitalizer based on PXI e interface |
| CN104361143A (en) * | 2014-11-28 | 2015-02-18 | 成都龙腾中远信息技术有限公司 | Portable data acquisition card and method thereof |
| CN104408213A (en) * | 2014-11-28 | 2015-03-11 | 成都龙腾中远信息技术有限公司 | Portable data acquisition card |
| CN104615042A (en) * | 2014-12-26 | 2015-05-13 | 北京航天测控技术有限公司 | PXIe bus based miniaturized multifunctional signal source device |
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